VLC didn't use to start up before when I plugged in my Kindle. Instead, there would open a dialog asking what to do. I used to choose the do-nothing option and all was fine.
Until I wanted to get rid of said dialog and ticked the remember-this-option checkbox and chose the do-nothing option again. The next time I plugged the Kindle in again, VLC autostarted, and it has been so since then. It tries in vain (obviously) to play the files on the Kindle.
I checked Preferences->Details->Removable Media in Cinnamon and set all (including the stuff behind the "other media" button) to do-nothing, to see if that helps, but no dice. What does help, however, is to check the checkbox at the bottom there that says to never ask or start programs for any removable media. Now that is a relief for when I work with the Kindle a lot, but for some other removable it is quite nice to be asked. And to be honest, the preferred option would be to start up calibre if it isn't running yet.
So, long story short:
a) Where are those preferences stored?
b) Is there any reason to have a category of removable media that has autostart settings that are not accessible via the GUI as opposed to the other categories?